Transparent mixture



Patented June 18;

' TRANSPARENT-MIXTURE 'Tullo Cordero, Merlon Station, Pa assignor to Unlted-Rexall Drug Company, a-corporation of Delaware No Drawing. Application October as, 1944,

Serial No. 560,909 r This invention relates to transparent mixtures, and more particularly to transparent mixtures of oil and water.

This application is a continuation-in-part of my copending application Serial No. 431,367, filed February 18, 1942.

Among the objects of this invention are the provision of transparent mixtures of the type indicated; the provision of mixtures of the class proportions thereof, and features of composition,

which will be exemplified in th products hereinafter described, and the scope of the application of which will be indicated in the following claims.

Referring to the present invention, it has been found that transparent mixtures of oils and water can be prepared from oil and water solutions having different indices of refraction, Such mixtures are of the solution type, andremain clear over long periods of time.

The mixtures of the present invention are prepared by mixing together an oil and water, each of which has dissolved therein the anhydride oi an esterifled hexahydric alcohol,

The preferred hexahydric alcohol ester anhy-'- drldes are the monolaurates and the modified monolaurates of the sorbitans and mannitans. Such modified sorbitan and mannitan monolaurates are condensation products with ethylene oxide. A type formula for a modified 1,4-mannitan or sorbitan monolaurate which may form on of the ingredients, is as follows:

noomcn.o).cmomon Ldnoomomopomomon H- omom0 .omomon HrOOOCnHa The sum of n+p+q=20 in this formula,

Mixtures oi. the various isomers of the mannitan and sorbitan esters are suitable for carryins out the present invention, and because of their ready availability are the preferred materials.

The preferred oil component is a mixture of a' 5 Claims. (Cl. 252-312) deodorized, highly refined light petroleum distillate, and a paraflin oil, although a straight parafiin oil may be substituted ii. desired.

In the preferred embodiment of the present invention,.-a sorbitan ester is dissolved in the oil fraction and a modified mannitan ester, because of its higher water solubility, is dissolved in the water component. The sorbitan ester-"dissolved in the oil fraction may be replaced wholly or in part with a mannitan ester, and the modified mannitan ester in the water component may be replaced wholly or in part with a modified sorbitan ester.

The following examples, in which all parts by weight, illustrate the invention. 1

Example 1 V are 12 parts of sorbitan monolaurate, consisting of a. mixture of the monolaurate esters of sorbitan, are mixed with 45 parts of deodorized light petroleum distillate "and 5 parts of light mineral oil.

- separately mixed with 19 parts of water. The- 1 9 parts of a modified mannitan monolaurate, consisting of a mixture of mannitan esters, are

mannitan-water mixture is then added to the sorbitan-oil mixture, and 'mixing is continued.

. is obtained.

A mixture of 32 parts sorbitan monolaurate and 30 parts of light mineral oil or paraflin oil is made. To this mixture is then added the mixture of modified mannitan monolaurate and water described in Example 1. A clear, transparent mixture is obtained.

Example 3 A mixture is made of 10 parts of light mineral oil or paraflln oil and 12 parts of sorbitan monolaurate. To this mixtureis added a mixture of 59parts of modified mannitan monolaurate and '19 parts of water. A clear transparentmixture Example 4 A mixture similar to that oi" Example 3 is made, except that the light mineral or paraflln oil is replaced with a mixture of 9' parts ofdeodorized' light petroleum distillate and 1 part 01' light mineral'oil. A clear, transparent mixture is obtained.

Example Amixture or mineral oil and sorbitan monolaurate is made as described in Example 3, and to this mixture is added a mixture of 39 parts of modified mannitan monolaurate and 39 parts or water. A clear, transparent mixture is obtained.

Example 6 A mixture of oil and sorbitan monolaurate is prepared as described in Example 3. To this mixture is added a mixture oi 29 parts or modifled mannltan monolaurate and 49 parts or water. A clear, transparent mixture is obtained.

Example 7 A mixture is formed of 40 parts of an oil traction composed of 90% deodorized refined light petroleum distillate and paraflln oil, and 12 parts by weight of sorbitan monolaurate. To this mixture is added a mixture or 29 parts of modified mannitan monolaurate and 19 parts of water. A clear, transparent mixture is obtained.

Example 8 A mixture of 30 parts of the oil fraction of Example 7 and 12 parts of sorbitan monolaurate is formed. To this mixture is added a mixture of 39 parts of modified mannitan monolaurate and 19 parts of water. A clear, transparent mixture is obtained.

Example 9 placed wholly or in part respectively with a mannital monolaurate and a modified sorbitan monolaurate.

Th clear, transparent mixtures obtained in the foregoing examples appear to be colloidal solutions. Although the ingredients have different indices of refraction, a clear mixture is obtained.

It' will be noted that the proportions of the various ingredients may be varied widely. The order of mixing of various ingredients may also be changed. In all instances, however, the various ingredients should be thoroughly intermixed.

The clear, transparent mixtures of the present invention may be utilized for many different purposes. They form excellent bases for a. hair dressing. for a lotion, and for other purposes for which a clear, transparent mixture or oil and water is desired. Additional ingredients may be incorporated into the present mixture as long as each ingredient is compatible with a component or the mixture. For example, a hair dressing may be made from such a base by the addition of ingredients such as pertumeaprese'rvatives, or other materials having special purposes.

In general, the mixtures of the present invention may be diluted with a substantial proportion of water or of 011 after their formation, without causing the mixture to lose its clear, transparent properties.

In view of the above, it will be. seen that the several objects of the invention are achieved and other advantageous results attained.

As many changes could be made in the above products without departing from the scope of the invention, it is intended that all matter contained in the above description shall be interpreted as illustrative and not in a limiting sense.

I claim:

1. A clear, transparent mixture of a mineral oil, water, a sorbitan monolaurate. and a con- 1 densation product oi sorbitan monolaurate with ethylene oxide. r

2. A clear, transparent mixture .of approximately 10-50 parts by weight of a mineral 'oil, approximately 19-49 parts by weight of water. approximately 12-32 parts by weight or a sorbitan monolaurate and approximately 19-59 parts by weight or a condensation product of mannitan monolaurate with ethylene oxide.

3. A clear, transparent mixture of approximately 10-50 parts by'weight of a mineral oil, approximately 19-49 parts by weight of water, approximately 12-32 parts by weight of a mannitan monolaurate and approximately 19-59 parts by weight of a condensation product of mannitan monolaiirate with ethylene oxide.

4. A clear, transparent mixture of approximately 10-50 parts by weight of a mineral oil, approximately 19-49. parts by weight of water, approximately 12-32 parts by weight of a sorbitan monolaurate and approximately 19-59 parts by weight of a condensation product. of sorbitan monolaurate with ethylene oxide.v

5. A clear, transparent mixture of approximately 10-50 parts by weight of a mineral oil, approximately 19-49 parts by weight of water, approximately 12-32 parts by weight of a mannitan monolau ate and approximately 19-59 parts by weight of a condensation product of sorbitan monolaurate with r thylene oxide.

TULIO CORDERO. 

